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From "Hrishikesh Gadre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11391) Enabling HVE/node awareness does not rebalance replicas on data that existed prior to topology changes.
Date Fri, 02 Nov 2018 00:24:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16672397#comment-16672397
] 

Hrishikesh Gadre commented on HADOOP-11391:
-------------------------------------------

[~xiaochen] I have uploaded a new patch (HADOOP-11391-004.patch) which addresses one of the
checkstyle warning. We should ignore the following warning since I am trying to use keep the
coding convention similar to the existing code.
{noformat}
./hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NamenodeFsck.java:1193:
   long numBlocksQueuedForReplication = 0L;:10: Variable 'numBlocksQueuedForReplication' must
be private and have accessor methods. [VisibilityModifier]{noformat}

> Enabling HVE/node awareness does not rebalance replicas on data that existed prior to
topology changes. 
> --------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-11391
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11391
>             Project: Hadoop Common
>          Issue Type: Bug
>         Environment: VMWare w/ local storage
>            Reporter: ellen johansen
>            Assignee: Hrishikesh Gadre
>            Priority: Major
>         Attachments: HADOOP-11391-001.patch, HADOOP-11391-002.patch, HADOOP-11391-003.patch,
HADOOP-11391-004.patch
>
>
> Enabling HVE/node awareness does not rebalance replicas on data that existed prior to
topology changes. 
> [root@vmw-d10-001 jenkins]# more /opt/cloudera/topology.data 
> 10.20.xxx.161   /rack1/nodegroup1
> 10.20.xxx.162   /rack1/nodegroup1
> 10.20.xxx.163   /rack3/nodegroup1
> 10.20.xxx.164   /rack3/nodegroup1
> 172.17.xxx.71   /rack2/nodegroup1
> 172.17.xxx.72   /rack2/nodegroup1
> before HVE:
> /user/impalauser/tpcds/store_sales <dir>
> /user/impalauser/tpcds/store_sales/store_sales.dat 1180463121 bytes, 9 block(s):  OK
> 0. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742xxx_1382 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 10.20.xxx.163:20002]
> 1. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742213_1389 len=134217728 repl=3
[10.20.xxx.164:20002, 172.17.xxx.72:20002, 10.20.xxx.161:20002]
> 2. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742214_1390 len=134217728 repl=3
[10.20.xxx.164:20002, 172.17.xxx.72:20002, 10.20.xxx.163:20002]
> 3. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742215_1391 len=134217728 repl=3
[10.20.xxx.164:20002, 172.17.xxx.72:20002, 10.20.xxx.163:20002]
> 4. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742216_1392 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 5. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742217_1393 len=134217728 repl=3
[10.20.xxx.164:20002, 172.17.xxx.72:20002, 10.20.xxx.163:20002]
> 6. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742220_1396 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.162:20002, 10.20.xxx.163:20002]
> 7. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742222_1398 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.163:20002, 10.20.xxx.161:20002]
> 8. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742224_1400 len=106721297 repl=3
[10.20.xxx.164:20002, 10.20.xxx.162:20002, 172.17.xxx.72:20002]
> ---------
> Before enabling HVE:
> Status: HEALTHY
>  Total size:	1648156454 B (Total open files size: 498 B)
>  Total dirs:	138
>  Total files:	384
>  Total symlinks:		0 (Files currently being written: 6)
>  Total blocks (validated):	390 (avg. block size 4226042 B) (Total open file blocks (not
validated): 6)
>  Minimally replicated blocks:	390 (100.0 %)
>  Over-replicated blocks:	0 (0.0 %)
>  Under-replicated blocks:	1 (0.25641027 %)
>  Mis-replicated blocks:		0 (0.0 %)
>  Default replication factor:	3
>  Average block replication:	2.8564103
>  Corrupt blocks:		0
>  Missing replicas:		5 (0.44682753 %)
>  Number of data-nodes:		5
>  Number of racks:		1
> FSCK ended at Wed Dec 10 14:04:35 EST 2014 in 50 milliseconds
> The filesystem under path '/' is HEALTHY
> ------
> after HVE (and NN restart):
> /user/impalauser/tpcds/store_sales <dir>
> /user/impalauser/tpcds/store_sales/store_sales.dat 1180463121 bytes, 9 block(s):  OK
> 0. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742xxx_1382 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.163:20002, 10.20.xxx.161:20002]
> 1. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742213_1389 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.161:20002]
> 2. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742214_1390 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.163:20002]
> 3. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742215_1391 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.163:20002]
> 4. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742216_1392 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.161:20002]
> 5. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742217_1393 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.163:20002]
> 6. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742220_1396 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.163:20002, 10.20.xxx.162:20002]
> 7. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742222_1398 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.163:20002, 10.20.xxx.161:20002]
> 8. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073742224_1400 len=106721297 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.162:20002]
> Status: HEALTHY
>  Total size:	1659427036 B (Total open files size: 498 B)
>  Total dirs:	176
>  Total files:	529
>  Total symlinks:		0 (Files currently being written: 6)
>  Total blocks (validated):	532 (avg. block size 3119223 B) (Total open file blocks (not
validated): 6)
>  Minimally replicated blocks:	532 (100.0 %)
>  Over-replicated blocks:	0 (0.0 %)
>  Under-replicated blocks:	1 (0.18796992 %)
>  Mis-replicated blocks:		0 (0.0 %)
>  Default replication factor:	3
>  Average block replication:	2.8383458
>  Corrupt blocks:		0
>  Missing replicas:		7 (0.46143705 %)
>  Number of data-nodes:		5
>  Number of racks:		3
> FSCK ended at Wed Dec 10 14:29:23 EST 2014 in 115 milliseconds
> The filesystem under path '/' is HEALTHY
> ------------
> store sales pushed to hdfs after HVE was configured:
> /user/impalauser/tpcds_after_hve <dir>
> /user/impalauser/tpcds_after_hve/store_sales.dat 1180463121 bytes, 9 block(s):  OK
> 0. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743406_2582 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 1. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743412_2588 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.162:20002, 172.17.xxx.72:20002]
> 2. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743415_2591 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 3. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743416_2592 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.162:20002, 172.17.xxx.72:20002]
> 4. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743417_2593 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 5. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743418_2594 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 6. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743419_2595 len=134217728 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]
> 7. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743422_2598 len=134217728 repl=3
[172.17.xxx.72:20002, 10.20.xxx.164:20002, 10.20.xxx.162:20002]
> 8. BP-1184748135-172.17.xxx.71-1418235396548:blk_1073743423_2599 len=106721297 repl=3
[10.20.xxx.164:20002, 10.20.xxx.161:20002, 172.17.xxx.72:20002]



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